The molar conductivities of ZnBr2-NaBr and ZnBr2-KBr melts were deduced from data on molar volume and electrical conductivity which had been determined by using dilatometry and alternating-current techniques, respectively. The results implied that dimers, or more complex clusters of ZnBr42− units, existed in ZnBr2-rich melts and tended to dissociate into monomers with increasing alkali bromide concentration or increasing temperature.

Molar Volume Variation and Ionic Conduction in Molten ZnBr2–NaBr and ZnBr2–KBr Systems. K.Fukushima, H.Inada, Y.Nakayama, Y.Iwadate: Journal of Alloys and Compounds, 2001, 315[1-2], 129-33